金沙开户注册官网:Spy satellites to fly in packs

2019-03-08 05:20:11

By Jeff Hecht HOW can you keep a single subsystem failure from turning a billion-dollar spy satellite into orbiting space junk? Break it into a cluster of modules, each of which can easily be replaced, suggests the US Defense Advanced Research Projects Agency (DARPA). Today’s satellites carry multiple instruments and support systems. This integrated approach minimises weight and launch costs,